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Preview: Brightsurf Science News :: Erosion News

Erosion Current Events and Erosion News from Brightsurf

Erosion Current Events and Erosion News Events, Discoveries and Articles from Brightsurf

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Toothpaste alone does not prevent dental erosion or hypersensitivity

Tue, 13 Mar 18 00:10:00 -0700

An analysis of nine toothpastes found that none of them protects enamel or prevents erosive wear. Specialists stress that diet and treatment by a dentist are key to avoid the problems originated by dentin exposure.

New study reveals the secret of magmas that produce global treasures

Thu, 01 Mar 18 00:06:00 -0800

South Africa's history and economy has been built on its rich natural treasures of a number of precious metals, stones and minerals. The country's mineral deposits have been created over hundreds of millions of years through processes that are still not completely understood. One of these processes is the origin of chromitite layers hosted by layered intrusions - a major source of chromium on our planet. The study reveals the formation of these layers.

Rooting sedimentary rock with terrestrial plants

Thu, 01 Mar 18 00:15:50 -0800

Geological records reveal that mudrocks emerged around roughly the same time as plants did, 500 million years ago, a new study reports.

Stormy weather

Mon, 26 Feb 18 00:07:30 -0800

Flooding isn't new to the Santa Barbara coastline. However, the inundation doesn't always come from the mountains as it did last month in Montecito. Back in 1861-2, a series of large storms washed beach sand more than a quarter mile inland into what today is the Carpinteria Salt Marsh. Although historical accounts document the inland flooding, little has been known about how those storms impacted a now heavily developed California coast.

Land use change has warmed the Earth's surface

Tue, 20 Feb 18 00:03:30 -0800

Recent changes to vegetation cover are causing the Earth's surface to heat up. Activities like cutting down evergreen forests for agricultural expansion in the tropics create energy imbalances that lead to higher local surface temperatures and contribute to global warming.

Continental interiors may not be as tectonically stable as geologists think

Mon, 19 Feb 18 00:06:10 -0800

A University of Illinois-led team has identified unexpected geophysical signals underneath tectonically stable interiors of South America and Africa. The data suggest that geologic activity within stable portions of Earth's uppermost layer may have occurred more recently than previously believed. The findings, published in Nature Geoscience, challenge some of today's leading theories regarding plate tectonics.

Key to predicting climate change could be blowing in the wind, researchers find

Thu, 15 Feb 18 00:14:50 -0800

Dust that blew into the North Pacific Ocean could help explain why the Earth's climate cooled 2.7 million years ago, according to a new study published in the journal Science Advances.

Cover crops in nitrogen's circle of life

Wed, 14 Feb 18 00:13:00 -0800

A circle of life-and nitrogen-is playing out in farms across the United States. And researchers are trying to get the timing right. The goal is to time nutrient release from cover crops to better match the nutrient needs of specific cash crops.

Rock art: Life-sized sculptures of dromedaries found in Saudi Arabia

Tue, 13 Feb 18 00:13:20 -0800

At a remarkable site in northwest Saudi Arabia, a CNRS archaeologist and colleagues from the Saudi Commission for Tourism and National Heritage have discovered camelid sculptures unlike any others in the region. They are thought to date back to the first centuries BC or AD. The find sheds new light on the evolution of rock art in the Arabian Peninsula.

Drugs, alcohol and suicides contributing to alarming drop in US life expectancy

Wed, 07 Feb 18 00:11:50 -0800

Drugs, alcohol and suicides are contributing to an alarming drop in US life expectancy, particularly among middle-aged white Americans and those living in rural communities, warn experts in The BMJ today.

UTIA research examines long-term economic impact of cover crops

Mon, 05 Feb 18 00:00:00 -0800

A team of researchers from the University of Tennessee Institute of Agriculture examined data from the past 29 years to determine whether it is profitable to include cover crops in an erosion management strategy. They found that while cover crops can cut into profitability over the short term, there are a number of benefits over long-term adoption.

Scientists find mechanisms to avoid telomere instability found in cancer and aging cells

Mon, 22 Jan 18 00:00:20 -0800

Researchers from Instituto de Medicina Molecular (iMM) João Lobo Antunes have found that a functional component of telomeres called TERRA has to constantly be kept in check to prevent telomeric and chromosomal instability, one of the underlying anomalies associated with cancer.

Scientist's work may provide answer to martian mountain mystery

Thu, 11 Jan 18 00:12:50 -0800

By seeing which way the wind blows, a University of Texas at Dallas fluid dynamics expert has helped propose a solution to a Martian mountain mystery. Dr. William Anderson, an assistant professor of mechanical engineering, co-authored a paper published in the journal Physical Review E that explains the common Martian phenomenon of a mountain positioned downwind from the center of an ancient meteorite impact zone.

Multiple sites rich in water ice found on Mars

Thu, 11 Jan 18 00:15:20 -0800

Erosion on Mars is exposing deposits of water ice, starting at depths as shallow as one to two meters below the surface and extending 100 meters or more.

Materials from arctic shelves are changing the water's composition

Wed, 03 Jan 18 00:07:00 -0800

Scientists say the input of shelf-derived materials to the central Arctic Ocean over the past decade appears to be increasing. They further note that this increase is altering the water's composition and could threaten biological productivity and species assemblages. Their results provide one of the first.

Study identifies California cliffs at risk of collapse

Wed, 20 Dec 17 00:15:00 -0800

A California Sea Grant-funded study provides the largest analysis of cliff erosion throughout the state and provides a new hazard index for determining which areas are at most risk.

How much soil goes down the drain -- New data on soil lost due to water

Fri, 15 Dec 17 00:16:20 -0800

According to a new study, almost 36 billion tons of soil is lost every year due to water, and deforestation and other changes in land use make the problem worse. The study also offers ideas on how agriculture can change to become a part of the solution from being part of the problem.

Alcohol taxes are too low, have not kept up with inflation

Wed, 13 Dec 17 00:02:30 -0800

State alcohol excise taxes are typically only a few cents per drink and have not kept pace with inflation, according to a new study in the January issue of the Journal of Studies on Alcohol and Drugs. Raising those taxes, according to the authors, represents an opportunity for states to increase revenues while simultaneously improving public health outcomes and costs related to excessive alcohol consumption.

New research improves understanding of ancient landscapes

Tue, 12 Dec 17 00:15:00 -0800

Geologists use zircon mineral grains to reconstruct what the Earth and its landscapes looked like in ancient times. A new study led by The University of Texas at Austin Jackson School of Geosciences suggests that scientists may be able to better leverage zircon data to understand how landscapes have evolved over time by considering a suite of factors that can skew zircon geochronologic data and interpretation of the origin of sediments.

NASA shows new Tongan island made of tuff stuff, likely to persist years

Mon, 11 Dec 17 00:15:40 -0800

In late December 2014, a submarine volcano in the South Pacific Kingdom of Tonga erupted, sending a violent stream of steam, ash and rock into the air. The ash plumes rose as high as 30,000 feet (9 kilometers) into the sky, diverting flights. When the ash finally settled in January 2015, a newborn island with a 400-foot (120-meter) summit nestled between two older islands -- visible to satellites in space.

Dust on the wind: Study reveals surprising role of dust in mountain ecosystems

Thu, 07 Dec 17 00:02:50 -0800

Trees growing atop granite in the southern Sierra Nevada Mountains rely on nutrients from windborne dust more than on nutrients from the underlying bedrock.

Study reveals significant role of dust in mountain ecosystems

Wed, 06 Dec 17 00:04:20 -0800

University of Wyoming researchers led a study that found foreign dust likely fertilizes plants in many locations worldwide.

Tigers cling to survival in Sumatra's increasingly fragmented forests

Tue, 05 Dec 17 00:07:50 -0800

A research expedition tracked endangered tigers through the Sumatran jungles for a year and found tigers are clinging to survival in low density populations. The study found that well-protected forests are disappearing and are increasingly fragmented: Of the habitat tigers rely on in Sumatra, 17 percent was deforested between 2000 to 2012 alone. Their findings have renewed fears about the possible extinction of the elusive predators.

Mass of warm rock rising beneath New England, Rutgers study suggests

Wed, 29 Nov 17 00:04:20 -0800

Slowly but steadily, an enormous mass of warm rock is rising beneath part of New England, although a major volcanic eruption isn't likely for millions of years, a Rutgers University-led study suggests. The research is unprecedented in its scope and challenges textbook concepts of geology.

New research indicates likely hydrological implications of rapid global warming

Mon, 20 Nov 17 00:07:10 -0800

Researchers studying a rapid global warming event, around 56 million years ago, have shown evidence of major changes in the intensity of rainfall and flood events. The findings indicate some of the likely implications should current trends of rising carbon dioxide and global warming continue.

'Brazil nut effect' helps explain how rivers resist erosion, Penn team finds

Mon, 20 Nov 17 00:05:30 -0800

In a new study, geophysicists from the University of Pennsylvania found that granular segregation helps explain the tendency of riverbeds to be lined by, or 'armored' with, a layer of relatively larger particles.

One in ten historic coastal landfill sites in England are at risk of erosion

Wed, 15 Nov 17 00:16:20 -0800

There are at least 1,215 historic coastal landfill sites in England, mostly clustered around estuaries with major cities, including Liverpool, London, and Newcastle on Tyne. An investigation by researchers, published today (Thursday Nov. 16) in WIREs Water finds that 122 sites are at risk of starting to erode into coastal waters by 2055 if not adequately protected.

Easing the soil's temperature

Wed, 08 Nov 17 00:08:00 -0800

Many factors influence the ability of soil to buffer against temperature changes. Recent research shows both perennial biofuel and cover crops help soils shield against extreme temperatures.

Cover crops provide bed and breakfast layover for migrating birds

Mon, 30 Oct 17 00:14:00 -0700

After harvesting a corn or soybean crop, farmers may plant a cover crop for a variety of reasons -- to reduce soil erosion and nutrient runoff, increase organic matter in the soil, and improve water quality. Now there's another reason. University of Illinois research shows that migratory birds prefer to rest and refuel in fields with cover crops.

WSU researcher links salmon sex to geological change

Thu, 19 Oct 17 00:02:20 -0700

It turns out that sex can move mountains. A Washington State University researcher has found that the mating habits of salmon can alter the profile of stream beds, affecting the evolution of an entire watershed. His studyis one of the first to quantitatively show that salmon can influence the shape of the land.

Scientists develop tool which can predict coastal erosion and recovery in extreme storms

Wed, 11 Oct 17 00:14:20 -0700

Coastal scientists at the University of Plymouth and University of New South Wales have developed a computerised model which goes some way to answering their subject's 'holy grail' -- how to use existing data to confidently forecast annual coastal erosion and accretion.

Soil amendments for healthier spinach

Wed, 04 Oct 17 00:15:50 -0700

Soils keep plants healthy by providing plants with water, helpful minerals, and microbes, among other benefits. But what if the soil also contains toxic elements, such as cadmium? The solution goes back to the soil. Researchers are investigating which soil additives work best.

An epidemic of dream deprivation: UA review finds unrecognized health hazard of sleep loss

Thu, 28 Sep 17 00:01:30 -0700

UA Center for Integrative Medicine sleep and dream specialist Dr. Rubin Naiman's comprehensive review of data about the causes, extent and consequences of dream loss includes recommendations for restoring healthy dreaming.

Preservation of floodplains is flood protection

Wed, 27 Sep 17 00:01:40 -0700

The silting of rivers and streams leads to problems for fish, mussels, and other aquatic organisms because their habitats disappear. However, not only intensive agriculture and erosion are destroying these habitats. Now a study conducted by researchers at the Technical University Munich refutes this widespread view. In order to save the species living in the river basin -- and protect people from the threat of floods -- rivers need more space, diversity, and freedom.

Climate change can goad volcanoes into life

Mon, 25 Sep 17 00:00:40 -0700

Geologists from UNIGE, working with the University of Orléans, University Pierre and Marie Curie and the ICTJA-CSIC Institute analyzed volcanic data from the Messinian salinity crisis in the Mediterranean Sea, when the Strait of Gibraltar was blocked and the Mediterranean temporarily isolated from the Atlantic. After testing various scenarios, the geologists concluded that the increase in magmatic activity could only be explained by the almost total drying out of the Mediterranean.

Study finds no-tillage not sufficient alone to prevent water pollution from nitrate

Fri, 22 Sep 17 00:07:50 -0700

A new IUPUI study funded by the US Department of Agriculture answers a long-debated agricultural question: whether no-tillage alone is sufficient to prevent water pollution from nitrate. The answer is no.

A sustainable future powered by sea

Fri, 22 Sep 17 00:01:10 -0700

OIST researchers develop turbines to convert the power of ocean waves into clean, renewable energy.

Helping Chinese farmers tackle erosion, increase profits

Wed, 13 Sep 17 00:16:10 -0700

On the steep farming slopes of China, Bozhi Wu and his research associates are finding ways to improve economic and environmental stability. They studied intercropping with corn and either setaria grass or chili peppers.

Hidden impacts of sand extraction and trade

Thu, 07 Sep 17 00:07:10 -0700

The increasing demand for sand in building infrastructure is prompting a range of environmental and social issues that must be addressed, Aurora Torres et al. stress in this Perspective, highlighting the role that science has in finding sustainable solutions.

Could switchgrass help China's air quality?

Tue, 05 Sep 17 00:12:30 -0700

Researchers from the United States and China have proposed an idea that could improve China's air quality, but they're not atmospheric scientists. They're agronomists.

This week from AGU: New research bolsters evidence for life on Mars

Wed, 23 Aug 17 00:10:20 -0700

This Week from AGU features recent research published in journals of the American Geophysical Union.

'Lost city' used 500 years of soil erosion to benefit crop farming

Mon, 21 Aug 17 00:16:00 -0700

Researchers at the University of York working on a 700-year-old abandoned agricultural site in Tanzania have shown that soil erosion benefited farming practices for some 500 years.

Understanding alternative reasons for denying climate change could help bridge divide

Tue, 15 Aug 17 00:11:20 -0700

An early look at ongoing work by a University of Kansas researcher examines alternative reasons for climate change denial, specifically economic, social or cultural influences on why individuals or entire communities remain skeptical of climate change.

Laser mapping project shows effects of physical changes in Antarctica's Dry Valleys

Tue, 08 Aug 17 00:08:10 -0700

Researchers funded by the National Science Foundation have publicly released high-resolution maps of Antarctica's McMurdo Dry Valleys, a globally unique polar desert.

Bush and Obama's gifts to Trump: More war-making powers

Tue, 08 Aug 17 00:03:00 -0700

Thanks to the military interventions by the George W. Bush and Barack Obama administrations, the former presidents have effectively expanded executive authority for Donald Trump to go to war, a study from the University of Waterloo has found.

Afforestation with non-native trees alters island soils

Sun, 06 Aug 17 00:15:00 -0700

The influence of non-native trees on soil chemistry considered.

Payments to rural communities offer a new opportunity to restore China's native forests

Thu, 03 Aug 17 00:01:10 -0700

Despite massive efforts at reforestation, China's native forests continue to be displaced by plantations. A new study argues that rural communities could help reverse this trend if they were given incentives to protect and restore native forests on their own land. A proposed new umbrella policy for environmental protection in China currently falls short of the measures needed, but if amended, could provide a unique opportunity to benefit rural communities and the environment.

Humans have been altering tropical forests for at least 45,000 years

Thu, 03 Aug 17 00:02:00 -0700

A new study, published in Nature Plants, counters the view that tropical forests were pristine natural environments prior to modern agriculture and industrialization. Moreover, humans have in fact been having a dramatic impact on such forest ecologies for tens of thousands of years, through techniques ranging from controlled burning of sections of forest to plant and animal management to clear-cutting.

Study finds climate plays role in decline of one of Asia's most critical water resources

Thu, 03 Aug 17 00:05:10 -0700

Climate variability -- rather than the presence of a major dam -- is most likely the primary cause for a water supply decline in East Asia's largest floodplain lake system, according to a Kansas State University researcher.

An end to cavities for people with sensitive teeth?
An ice cold drink is refreshing in the summer, but for people with sensitive teeth, it can cause a painful jolt in the mouth. This condition can be treated, but many current approaches don't last long. Now researchers report in the journal ACS Applied Materials